How to apply radial load in cylindrical object?

[SteveFinnan]

Please refer to the link under attachment, that's my model (using Solidworks). This is regarding my final year project. Load analysis on stent.

I want to apply a radial load onto the inner surface of the balloon, so that the balloon will expand, which in turn will expand my stent.

I'm using Static Structural-Mechanical to solve the problem.

 

[SteveFinnan]

Aarrggh... It is not radial load. Mistake.

What I mean is the load acting on the inner surface on the cylindrical object (balloon catheter). Each point on the inner surface of the balloon should have the same load acting on it.

 

[Drej]

Can't you just simply pick the inner areas and apply a pressure?


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[inline6]

a pressure seems to do what you are asking

 

[SteveFinnan]

@Drej

Trust me, I would not have to take all the trouble and post a new thread if I know the solution.

And no, Ansys Mechanical does not assume that the pressure is distributed uniformly throughout the circular wall of cylinder. ANsys Mechanical will assume that it is a point load. Not a distributed load.

Hence, I cannot just pick a area and apply a pressure.

 

[Drej]

In that case, I suggest that in future if you require an appropriate reply then you should give this information in your post up front, as the batteries on my crystal ball are running low.

For information:
If you apply a pressure to an area correctly in ANSYS Mechanical, the code will not "assume that it is a point load". Any pressures applied will be converted internally to forces at the nodes but you will not see this in Workbench.


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